Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:52:23 2012 Optimize a model with 345 rows, 355 columns and 1215 nonzeros Presolve removed 0 rows and 23 columns Presolve time: 0.00s Presolved: 345 rows, 332 columns, 1192 nonzeros Variable types: 0 continuous, 332 integer (331 binary) Found heuristic solution: objective 55.0000000 Root relaxation: objective 0.000000e+00, 203 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00000 0 141 55.00000 0.00000 100% - 0s H 0 0 52.0000000 0.00000 100% - 0s H 0 0 43.0000000 0.00000 100% - 0s H 0 0 38.0000000 0.00000 100% - 0s 0 0 0.15482 0 143 38.00000 0.15482 100% - 0s H 0 0 32.0000000 0.15482 100% - 0s H 0 0 27.0000000 0.15482 99.4% - 0s 0 0 0.66667 0 145 27.00000 0.66667 97.5% - 0s H 0 0 22.0000000 0.66667 97.0% - 0s 0 0 0.66667 0 145 22.00000 0.66667 97.0% - 0s H 0 0 20.0000000 0.66667 96.7% - 0s 0 0 0.66667 0 150 20.00000 0.66667 96.7% - 0s 0 0 0.66667 0 146 20.00000 0.66667 96.7% - 0s H 0 0 17.0000000 0.66667 96.1% - 0s H 0 0 13.0000000 0.66667 94.9% - 0s 0 2 0.66667 0 146 13.00000 0.66667 94.9% - 0s * 14 8 10 3.0000000 1.00000 66.7% 59.1 0s Cutting planes: Gomory: 3 Zero half: 2 Explored 29 nodes (2836 simplex iterations) in 0.14 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%